Satisfaction on eurostat. Eurostat (https://ec.europa.eu/ eurostat) provides high-quality European statistics. The Eurostat 2020 User Satisfaction Survey uses

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Satisfaction on eurostat. Eurostat (https://ec.europa.eu/ eurostat) provides high-quality European statistics. The Eurostat 2020 User Satisfaction Survey uses the scale of 1 = Very good/Good, 2 = Adequate, 3 = Poor/Very poor and 4 = No opinion in determining the satisfaction of users on the ease of finding statistics on the website and for the overall quality of Eurostat’s data and services. In an assessment of the overall data quality, the percentage of users’ satisfaction, x, is listed in the following table. Satisfaction level, x Percentage (%) 1 (Very good/Good) 71.6 2 (Adequate) 19.5 3 (Poor/Very poor) 5.5 4 (No opinion) 3.4

a. Verify that the percentages given in the table satisfy a probability distribution for a discrete random variable.

b. Find P1x … 22.

c. Find E1x2. Interpret this value, practically.

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Statistics For Business And Economics

ISBN: 9781292413396

14th Global Edition

Authors: James McClave, P. Benson, Terry Sincich

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